Aube Technologies TH115-A-120S 7-Day Programmable Line Voltage Thermostat for Electric Heating Advanced temperature control ensures total comfort by minimizing temperature swings ON/STANDBY switch enables thermsotat shutdown at the end of heating season for added security On-screen heating power indicator gives at-a-glance verification of power being used Early Start function ensures programmed temperature is reached by programmed time Temporary bypass enables temperature override without changing programming